Home / 77,572.91-116,345.50-20,647.13

Finding the Fourth Proportional to 77,572.91, 116,345.50 and 20,647.13

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Solution

The fourth proportional to 77,572.91, 116,345.50 and 20,647.13 is: 30,967.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,572.91 : 116,345.50 = 20,647.13 : x
  2. Step 2: Convert to fraction form
    77,572.91/116,345.50 = 20,647.13/x
  3. Step 3: Cross multiply
    77,572.91x = 116,345.50 × 20,647.13
  4. Step 4: Simplify right side
    77,572.91x = 2,402,200,030.07
  5. Step 5: Solve for x
    x = 2,402,200,030.07/77,572.91
  6. Step 6: Final answer
    x = 30,967.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.